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Cypripedium parviflorum var. pubescens
Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight
Greater yellow lady's slipper, Large yellow lady's slipper
Synonym(s): Cypripedium calceolus var. planipetalum, Cypripedium calceolus var. pubescens, Cypripedium furcatum, Cypripedium planipetalum, Cypripedium pubescens, Cypripedium pubescens var. pubescens
USDA Symbol: CYPAP3
Borne terminally on a leafy stalk are 1 or 2 fragrant flowers with an inflated, yellow, pouch-shaped lip petal.
The Yellow Ladys Slippers form a highly variable population, and currently the large and small forms are regarded as separate species. The Small or Lesser Yellow Ladys Slipper (C. parviflorum), has very fragrant flowers, a lip petal only 3/4-1 1/2 (2-3.8 cm) long, brownish lateral petals, and a height of about 22 (55 cm). It is found mostly in limestone wetlands, only rarely as far south as the Appalachian mountains. Cherokee people made a preparation from the roots of these plants that was drunk as a treatment for worms.
Bloom InformationBloom Color: Yellow , Brown
Bloom Time: Apr , May , Jun , Jul , Aug
, WY Canada: AB
, SK Native Distribution:
Newfoundland, south to mountains of Georgia; most of midwest, Great Lakes, and Plains states; in south west to Arizona and California, north to Pacific Northwest. Native Habitat:
Bogs and swamps, rich woods.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Mt. Cuba Center
- Hockessin, DE
Record Last Modified: 2013-07-17
Research By: TWC Staff